<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <script>
    // let uanme = prompt('请输入您的姓名')
    let age = +prompt('请输入您的年龄')
    // let gender = prompt('请输入您的性别')
    // console.log(`用户的姓名:${uanme}`);
    console.log(`据我估计，五年后，你可能${age + 5}了`);
    // console.log(`用户的性别:${gender}`);
  </script>
</body>

</html>